[EVDL List]

I installed a regenerative braking system in my 96 volt SAAB EV about 10 years ago. The system was designed by Gary L. Jackson and uses a separate 6 volt battery to provide a low volt/high amperage current to the motor field at the flick of a switch (contactor) and generates current back to the batteries through the Curtis controller, providing braking, to the degree the pot box is engaged.

The regen system worked flawlessly for years but stopped working abruptly right after I installed a new set of Trojan T-125's this summer. I have tested and changed out a few of the components (high power diodes and the snubber resistors and capacitors) but the system is not testing out correctly (wire in 150 watt incandescent bulbs in place of the motor) and still doesn't work. I haven't been able to find any contact information for Gary Jackson.
Does anyone out there know of him or have any contact information?

Is anyone familiar with or using this system of regen braking system?

I have a copy of Jackson's regen braking manual with descriptions, diagrams and test out procedures, and can provide more information on the system if anyone is interested in trouble shooting the problem. I believe that the manual is still available for those interested.

I'd appreciate any information.

Thanks

Christen



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[EVDL List]

Hi Christen and All,

I'm thinking of using a similar system in
my EV to do regen and reverse with less contactors so would
be very interested in the manual. Once I've seen your
circuit I can probably help you with your problem.
Also at 10 yrs the Caps in your
controller are probably going bad. I'd check the Pot, it's
wires and contacts for burnt spots, the regen battery as it
might be dead under use, it's connections, ect so test it
with a load. As the regen parts have little voltage, they
should be reilable.
I'm planning on using BB600's for my
regen battery so I can adjust the regen, reverse better and
not kill it from sitting around.

Jerry Dycus

----- Original Message Follows -----
From: "Christen Johansen" <[email protected]>
To: <[email protected]>
Subject: [EVDL] Regenerative Braking
Date: Tue, 9 Oct 2007 08:00:42 -0700

>I installed a regenerative braking system in my 96 volt
>SAAB EV about 10 years ago. The system was designed by Gary
>L. Jackson and uses a separate 6 volt battery to provide a
>low volt/high amperage current to the motor field at the
>flick of a switch (contactor) and generates current back to
>the batteries through the Curtis controller, providing
>braking, to the degree the pot box is engaged.
>
>The regen system worked flawlessly for years but stopped
>working abruptly right after I installed a new set of
>Trojan T-125's this summer. I have tested and changed out a
>few of the components (high power diodes and the snubber
>resistors and capacitors) but the system is not testing out
>correctly (wire in 150 watt incandescent bulbs in place of
>the motor) and still doesn't work. I haven't been able to
>find any contact information for Gary Jackson. Does anyone
>out there know of him or have any contact information?
>
>Is anyone familiar with or using this system of regen
>braking system?
>
>I have a copy of Jackson's regen braking manual with
>descriptions, diagrams and test out procedures, and can
>provide more information on the system if anyone is
>interested in trouble shooting the problem. I believe that
>the manual is still available for those interested.
>
>I'd appreciate any information.
>
>Thanks
>
>Christen
>
>
>
>_______________________________________________
>For subscription options, see
>http://lists.sjsu.edu/mailman/listinfo/ev

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For subscription options, see
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